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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 20, Iss. 19 — Oct. 1, 1995
  • pp: 1934–1936

Scattering of light by large nonspherical particles: ray-tracing approximation versus T-matrix method

Andreas Macke, Michael I. Mishchenko, Karri Muinonen, and Barbara E. Carlson  »View Author Affiliations


Optics Letters, Vol. 20, Issue 19, pp. 1934-1936 (1995)
http://dx.doi.org/10.1364/OL.20.001934


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Abstract

We report, for the first time to our knowledge, comparisons of light-scattering computations for large, randomly oriented, moderately absorbing spheroids based on the geometric-optics approximation and the exact T-matrix method. We show that in most cases the geometric-optics approximation is (much) more accurate for spheroids than for surface-equivalent spheres and can be used in phase function computations (but not in polarization computations) for nonspherical particles with size parameters as small as 60. Differences in the single-scattering albedo between geometric-optics and T-matrix results are surprisingly small, even for small size parameters.

© 1995 Optical Society of America

History
Original Manuscript: May 26, 1995
Published: October 1, 1995

Citation
Andreas Macke, Michael I. Mishchenko, Karri Muinonen, and Barbara E. Carlson, "Scattering of light by large nonspherical particles: ray-tracing approximation versus T-matrix method," Opt. Lett. 20, 1934-1936 (1995)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-20-19-1934

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